Hairbrush



FIG. 1 is a first end view of the hairbrush in a closed configuration;

FIG. 2 is a second end view of the hairbrush in a closed configuration;

FIG. 3 is a top plan view of the closed hairbrush;

FIG. 4 is a side view of the closed hairbrush (the other side view being a mirror image);

FIG. 5 is an bottom plan view of the closed hairbrush; and,

FIG. 6 is a perspective view of the hairbrush in an opened position. 

The ornamental design for a hairbrush, as shown and described. 